/// <summary>
/// This Will attempt to add an <see cref="AppUser"/> by calling an instance of <see cref="IAppUserRepository"/>
/// </summary>
/// <param name="username"></param>
/// <example>
/// Usage:
/// <code>
/// AppUserService.AddAppUserAsync("test");
/// </code>
/// </example>
/// <returns></returns>
public async Task <AppUserDto> AddAppUserAsync(string username)
{
var existingAppUser = await _appUserRepo.GetAppUserByUsernameAsync(username).ConfigureAwait(false);
//Check if the username already exists
if (existingAppUser == null)
{
//if the appUser does not exist, create it
return(await _appUserRepo.AddAppUserAsync(AppUser.CreateUserAsync(username).Result).ConfigureAwait(false));
}
//adding appUser failed
throw new ApplicationException($"User {username} already exists");
}
